Real Madrid will secure and consolidate their future with the Mbappe transfer for sure. I'm very confident about it and I don't expect him to have adaptation problems. Fabrizio Romano has already tweeted Mbappe's official deal with Real Madrid by the way. 
Real Madrid or Mbappe haven't announced the news officially though as far as I can see. But after the celebrations they would also surely announce. I trust Fabrizio Romano as a source as his news are correct nearly every time.
Anyways, from now on I'm looking forward to watching Mbappe in Real Madrid jersey. He is really hungry for Champions League titles and much more meaningful domestic titles compared to the Ligue 1. 
Real Madrid or Mbappe haven't announced the news officially though as far as I can see. But after the celebrations they would also surely announce. I trust Fabrizio Romano as a source as his news are correct nearly every time.
Anyways, from now on I'm looking forward to watching Mbappe in Real Madrid jersey. He is really hungry for Champions League titles and much more meaningful domestic titles compared to the Ligue 1. More recently, Fabrizio Romano wrote that Kroos was extending his contract with Real Madrid and would remain for another year, and just a few days later Kroos announced his retirement
But in the case of Mbappe it is difficult to make a mistake - everyone without insiders knows where Mbappe is going.
I would like to know if Mbappe regrets that he did not do this earlier? After all, he most likely would already have the Champions League title by now.